ruby code example(9)

ruby code example(9)

line = "abc"
if line =~ /Perl|Python/	##匹配正则表达式
    puts "Scripting language mentioned: #{line}" 
end


  line.sub(/Perl/, 'Ruby')    # replace first 'Perl' with 'Ruby'
  line.gsub(/Python/, 'Ruby') # replace every 'Python' with 'Ruby'